Typewriting machine



Nov. 28, 1933. JfTOGGENBURGER TYPEWRITING' MACHINE Filed NOV. 25 1929 //7 Vehfor:

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to the wehs cel F. Pete .s or set travels with the W336 e hng operation; and soon. as the t e form is completed mnlti A cedwhile the cells-011s are cschon stripping m on the welt, preparatory to ty w Q to of present in= c'"-sn pet 5:, unit or engiidles the ludes ecsrhcn carrier of caching ensverse near its end, oi work-web seine threaded sci-d slits, one ply in each slit. The welo=plies sie pulled through the slits at the cerhoinstriganing operation; but at other times the web and the eerJcn-unit travel together, the carrier e sheet adapted to run around the platen. By means of said slits there is formed at set of transverse bars in the cerlcon-csrrier, end from these cars the carbon-sheets extend towards the delivery side of the platen.

At its other end the flexible cerhon-csrrier is caught upon an anchorage in the form of e her which is fined upon the platen-frame, so that this end of the carrier is retained in stationary condition or anchored during the carbon-stripping ceeretion. The corhon cerrier sheet is made oi length, so that it can reach beneath the platen end up in front thereof, thereby permitting the carbons to become straightened out at the delivery side of the platen preparatory to the stripping operation, thus avoiding bniding between the Web-plies and the carbons.

Mter the stripping operation, the platen is to tcted becltwsrdly to bring the bottom of the typed form to a web-severing knife, whereby the typed form may be torn oil. At this time the web is preferably position to receivethe first line of typing on the succeeding form.

During the above-described retraction of the composite web, the carbon-carrier sheet remains with its rear end attached to said transverse bsr. Consequently the tree portion of the carrier-sheet idly forms itself into a loop at the back of the platen. This loop is partly taken up as the linespncing proceeds during the typing of the next form. After the latter is typed, the bottom feedrolls are cost 011' from the platen, and the lending end of the web is grasped between the fingers and pulled up. By this operation there is first taken 6% up the remaining loop or slack in the carbon-cs1- as reqtdled. l and advantages hereineltezc he accompanying drawing,

lite is e perspective view, showing the car lit place in. the machine, and nethod oi attaching; the rear end. oi Cdlhd=l3dfrlfiff to its anchorage, hut omitting the which the carbons provided with shoulders which are stitched to the side-edge portions of the -deidhle csrlion -cemie'r sheet.

Figure 3 is a sectional side elevetion of n pleten-cerrisee of on Underwood typewritine' mschine, illustrating the present invention, with the posts m positions for tearing cit e typed town; the carbons being shown as having been stripped to the next tom.

Figure 4 is s perspective front view, illustmh ins" the manner of stripping the carbons as he letter are held by their enchorage.

in machine, t ..es id strike s platen ll, having en nxle 12, whereby it is mounted in the ends 13 oi as plsten imme, the letter includ ing a reel paper-shell i l extending upwardly end reerwsrdly from the bottom oi the platen.

The plies of work-web l5 are introduced at the hack of the machine end led forwardly over the paper-shell it and down around the. platen and up in front thereof, where they may he guided by a, delivery chute ill having guides 17 for the opposite side edges of the web; said chute including a, delivery table it which extends upwardly and rem'wsnily from the delivery side of the platen.

Between the plies of web are interleaved ,carlion-sheets 1.9, which are free at their lending ends, but which at their trailing ends are at toched to a fleinlole carrier in the form of st sheet 20 oi smooth, durable febrile, which may pass readily around the platen, but is capable of exert= has control over the carbons. The carbons may be individually attached at their trailing ends to cross-hers 21, which are formed in the advance portion or end of the carbon-carrier 2d; the lattes having sufficient stifiness end the bars 21 being of snfdcient height to form firm. attachments or supports for the carbons.

The hers 21 may he formed by cutting transverse slots 22 in the carrier; and the trailing ends of the carbons may he cemented or otherwise et= tached to the bars, or folded thereover.

The web-plies l5 ere threaded through the slots 22, one ply through each. slot, and the can bon-csrtier sheet 20 may be suficiently smooth to avoid undue friction when the web-plies are drawn through the slots at the when-stripping llll operation. At other times the carbon-unit and the web run together around the platen, being held thereagainst by the usual feed-rolls 23, which are shown released at Figure 4, for the carbonstripping operation. It will be seen that the carbon-set, which includes the carbon and the carrier 20, engirdles the web and travels therewith, but that relative shifting can take place lengthwise of the web. 1

At its rear end the carbon-carrier sheet 20 is attached to a transverse bar 24, which is fixed at its ends to the top of a pair of arms 25 erected at opposite ends of the platen frame or carriage. A

clip 26 is pivoted at 27 upon one end of said bar,

and clips the folded end of the flexible carboncarrier 20 over the bar; anchoring the carrier firmly at all times. The device is particularly useful at the carbon-stripping operation, since the sheet is firmly held at all points while the web is being pulled past the interleaved carbons. The tendency of the work-web at this time is to effect a straightening out of the carbon-unit, because the latter is fixed at its rear end while the work web advances therethrough and, by friction, tends to pull the carbon-carrier taut at all points, therefore bringing it into proper lateral position; the work-web being guided by the chute 16, and at the conclusion of the stripping operation carbons are found to have the proper registration with reference to the work-web.

' The stripping is completed by the time the web is raised to the Figure 4 position. Thereupon the platen is rotated backwardly by means of a hand-wheel 28; the feed-rolls 23 having first been restored to the platen. This retraction proceeds until a. perforated line 29, which separates the forms, reaches the edge of a knife 30, whereupon the typed form is torn off at Figure 3. At this time the web is in position for typing the first line upon the succeeding form." I

The knife 30 is securable at any elevation in a rack 31 that is formed upon side plates 32; the arms 25 extending up from said side plates and a pair of base flanges 33 being bent out from the plates 32 for attachment by screws 34 to the tops of the platen-frame ends. that the plates 32 are rigidly joined by the bar or tie-rod 24, and also that the racks31are rigidly joined by a tie-bar 35; thus making a frame which carries the adjustable knife 30, so that the whole device'may be manufactured as a unitfor attachment to standard Underwood and other typewriters. Said knife is adjustable up and down in notches 36 and threaded holes 3'7 provided in said racks. g I

To accommodate different widths of paper, the sideguides 17 may be formed upon separate plateportions 38 of the chute, Figure 1, the plates38 being adjustably held by screws 39 upon the tiebar 35.

At Figure 2, the carbons 40 have projectin portions or shoulders 41 at their trailing ends, and these shoulders are attached by lines of stitching 42 to the leading portion 43 of the carbon-carrier, said leading portion being cut away or recessed at 44 to great depth, to expose a great area of the lower portions of the carbons to the typeblows; thus conducing to efliciency and economy.

The plies of work-web are inserted between the carbons 40 before the carbon-carrier is attached to the machine; and thesame practice is also observed with the form of the invention shown at Figure 4.

It will be seen that the carbon-carrier, although one portion thereof travels with the web during Itv will be. seen the line-spacing operation, is flxedto the platenframe at its rear end, so there is no danger of the carbon-carrier becoming skewed or buckled, nor liability of the carbons becoming either skewed or creased. The carbon-carrier receives the same longitudinal tension at all portions of its width, and is not liable to become torn or injured. It will also be seen that the carrieris readily attached along its entire length to the platen-frame, and hence the carbons will automatically become realigned at the stripping operation, in case they .have become disarrayed during the line-feeding.

Skewing and side pull of the carbons is prevented, and side guides for the carbons may in many cases be'omitted. No strain is put upon the flexible carrier at any point where it is fastened to the typewriter.

Another valuable feature is that at any time the carbonvcarrier may be released from the anchorage 24, and shifted a little in a direction longitudinally of the work-web, thereby exposing fresh lines or portions of the carbon for use. This conduces to efiiciency and effects substantial economy of carbon-paper in many kinds of work. Many other advantages are also apparent from the foregoing description and drawing.

P10 claim is herein made to the inventions disclosed in the co-pending application of Jesse A.

B. Smith, Serial No. 315,548, filed October 27, 1928,

or Serial No. 358.173, filed April 26, 1929, renewed November 12, 1931. The claims in this case are limited to features which are not disclosed in either of said applications.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. As a new articleof manufacture, a carbonpack forming a unit and including a flexible car- 'rier-sheet, and carbon-sheets extending from the leading end of the carrier, the other end of saidcarrier being adapted for attachment to an anchorage in a typewriting machine, the carbonsheets having-shbulders which project beyond the sides of the work-plies, and. said shoulders being attached to the front end of the carriersheet, said front end having a deep recess to expose additional portions of the carbon-sheets to use.

2. A web-manifolding. attachment for a typewriting machine in the form of a unit, including a frame having means for attachment to the platen-frame of a typewriting machine, said frame including a tie-bar which serves as an anchorage for attachment thereto of the rear end of a carbon-carrying sheet, said frame also having a web-severing knife extending from side to side of the frame, the latter having racks upon which the ends of the knife are adjustable up and down.

. 3. A web-manifolding attachment for a typewriting machine in the form of a unit, including a frame having means for attachment to the platen-frame of a typewriting machine, said frame includinga tie-bar which serves as an anchorage for attachment thereto of the mal end of a carbon-carrying sheet, said frame also having a web-severing knife extending from side to side of the frame, the latter having racks upon which the ends of the knife are adjustable up 

